The conception of new, simple low-voltage cathodoluminescence set-up with CNT field emission cathodes

摘要

The new, simple low-voltage cathodoluminescece set-up was designed and plotted. The set-up was designed on the base of field emission light emitting device with carbon nanotube (CNT) cold cathode and anode covered by layer of nancrystalline phosphor. The concept of set-up allowed for measuring of emissive properties of even 8 different samples in a very short time. The samples are placed in the vacuum chamber and the luminescent spectra are recorded using outside placed fiber spectrophotometer. The pressure in the set-up is controlled by vacuum sensor. The opportunities and application of presented conception of set-up will be discussed.